After the canoe day, i got myself a bit of food poisoning and slept for about 12 hours the next day. The following day we took a 9 hour bus ride through jungle on the shittiest roads I've ever been on to get to the city of Puerto Princesa. From Puerto we took the road in the following picture to the tiny town of Sabang where the outlet of the world's longest underground river is. We were able to take a tour of only 1.5 kilometers of the total 20 kilometer length.